The money intended for the marker will go instead to Children`s Memorial Hospital, where Quinten spent 27 months in intensive care before his death in August 1986.

His father, Ricky Irby Sr., 29, was convicted of poisoning him with sulfuric acid and was sentenced to 80 years in prison.

Quinten`s mother, Shelia Smith, 28, pleaded guilty to the bizarre crime and is serving a 60-year sentence. Prosecutors said the parents, former North Chicago residents, plotted their son`s death in a get-rich-quick scheme in which they would blame the poisoning on contaminated baby formula.

The infant was only 3 months old when he ingested the acid on May 31, 1984.

Kay Randle, manager of North Chicago Memorials, said she decided to donate the marker after being contacted by Matthew Chancey, an assistant Lake County state`s attorney who prosecuted Irby and Smith.